UPDATE 1-U.S.-based stock funds post 5th straight week of withdrawals -Lipper

(New throughout, adds comments, details on various asset classes) By Tariro Mzezewa NEW YORK, Feb 4 (Reuters) - Investors pulled $6.5 billion out of U.S.-based stock funds during the week ended Feb. 3, Lipper data showed on Thursday, as investors largely shunned risky financial assets for the fifth straight week. U.S.-based corporate investment-grade bond funds, another gauge of risk appetite, also saw significant cash withdrawals, with investors yanking $1.5 billion from the sec